Home / 8,269.40-12,371.70-7,491.80

Finding the Fourth Proportional to 8,269.40, 12,371.70 and 7,491.80

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Solution

The fourth proportional to 8,269.40, 12,371.70 and 7,491.80 is: 11,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.40 : 12,371.70 = 7,491.80 : x
  2. Step 2: Convert to fraction form
    8,269.40/12,371.70 = 7,491.80/x
  3. Step 3: Cross multiply
    8,269.40x = 12,371.70 × 7,491.80
  4. Step 4: Simplify right side
    8,269.40x = 92,686,302.06
  5. Step 5: Solve for x
    x = 92,686,302.06/8,269.40
  6. Step 6: Final answer
    x = 11,208.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.